Acceleration and suppression of photoemission of GaAs quantum dots embedded in photonic crystal microcavities

We fabricated optical microcavities in a photonic crystal slab embedded with GaAs quantum dots by electron beam lithography and droplet epitaxy. The Purcell effect of exciton emission of GaAs quantum dots was confirmed for the first time by microphotoluminescence and lifetime measurements. (C) 2008 American Institute of Physics.